package com.atguigu.gulimall.product.exception;

import com.atguigu.common.utils.R;
import com.atguigu.common.utils.exception.BizCodeEnume;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Slf4j
@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
public class GulimallExceptionControllerAdvice {

    @ExceptionHandler(value = Exception.class)
    public R handleValidException(MethodArgumentNotValidException e){
    log.error("数据校验出现问题{}，异常类型：{}",e.getMessage(),e.getClass());
        BindingResult bindingResult = e.getBindingResult();
        List<FieldError> fieldErrors = bindingResult.getFieldErrors();

        Map<String,String> errorMap  = new HashMap<>();
        fieldErrors.forEach((fileldError)->{
            errorMap.put(fileldError.getField(),fileldError.getDefaultMessage());
        });

        return  R.error(BizCodeEnume.VaILD_EXCEPTION.getCode(),BizCodeEnume.VaILD_EXCEPTION.getMsg()).put("errors",errorMap);
    }

    @ExceptionHandler(Throwable.class)
    public R handleException(Throwable throwable){
        return R.error(BizCodeEnume.UNKNOW_EXCETPION.getCode(),BizCodeEnume.UNKNOW_EXCETPION.getMsg());
    }
}
